> I often wonder if the term invasive species should be reclassified as opportuniphytes
At 08:27 PM 4/5/2006, Gary Ervin wrote: > >Invasive species - alien species that have overcome environmental, > >reproductive, and dispersal barriers in their new range, thus that they > >now readily spread and establish into either disturbed or undisturbed > >habitats > > Well, as president Reagan might say, I'm not so sure that a crucial > distinction is not missing here. > > If an organism colonizes only disturbed habitats, and does not > establish viable populations in undisturbed ones, is there not a > significant difference there worthy of a distinguishing term? > > WT > --------------------------------------------- College of Agriculture and Life Sciences Web Mail. http://ag.arizona.edu
